α-Angelica lactone
Alpha-Angelica lactone (CAS 591-12-8, C5H6O2, MW: 98.10 g/mol) is a heterocyclic organic compound. This lactone is recognised for its utility as a building block in chemical synthesis. Its versatile structure makes it a valuable intermediate for creating more complex organic molecules. It is supplied by Tech Serve Solutions with a minimum assay of 98% for research and development purposes.
- IUPAC
- 4-Hydroxy-3-pentenoic acid γ-lactone,5-Methyl-2(3H)-furanone,alpha-Angelica lactone

Chemical Synthesis Intermediate
Alpha-Angelica lactone serves as a key intermediate in organic synthesis, enabling the construction of diverse molecular architectures. Its lactone ring can be readily functionalised or opened, providing access to various derivatives.
Building Block for Complex Molecules
As a fundamental organic building block, this compound is employed in the multi-step synthesis of various target molecules. Its specific structural features are advantageous for introducing defined stereochemistry or functional groups.
Research and Development
Utilised in academic and industrial laboratories for exploring novel synthetic pathways and developing new chemical entities. Its availability as a fine chemical supports ongoing research in organic chemistry.
| Molecular weight | 98.10 |
|---|---|
| Empirical formula | C5H6O2 |
| Assay | 98% |
| Boiling point | 55-56 °C/12 mmHg(lit.) |
| Density | 1.092 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.448(lit.) |
| Melting point | 13-17 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, half-mask respirator (EU), half-mask respirator (US), multi-purpose combination respirator cartridge (US) |
|---|---|
| Flash point | 68 °C / 154.4 °F |
| Transport (UN / ADR) | NA 1993 / PGIII |
| Water hazard class (WGK, DE) | 2 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Alpha-Angelica lactone used for?
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Alpha-Angelica lactone is primarily used as an intermediate and building block in organic chemical synthesis and research and development.
What are the CAS number and molecular formula for Alpha-Angelica lactone?
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The CAS number for Alpha-Angelica lactone is 591-12-8 and its molecular formula is C5H6O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Alpha-Angelica lactone with a minimum assay of 98%. We do not represent this product as USP, BP, or EP grade.
What are the safety considerations when handling Alpha-Angelica lactone?
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Handling Alpha-Angelica lactone requires appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection (e.g., half-mask respirator). Ensure good ventilation and consult the Safety Data Sheet for detailed hazard information.
How is Alpha-Angelica lactone packed and shipped?
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Alpha-Angelica lactone is packed and shipped in compliance with relevant regulations, including those for flammable liquids (NA 1993, PGIII). TSS is a global supplier and exporter.
How can I request a sample or quote for Alpha-Angelica lactone?
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To request a sample or a quote for Alpha-Angelica lactone, please contact the TSS sales department through our website or by phone.
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